Conveners
Track 1 - Amplitude (generic): Parallel Session VII
- Kirill Melnikov (TTP KIT)
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Nicolo Giraudo (University of Zurich)10/9/26, 9:00 AM1
OpenLoops+LTD is a new automated NLO parton-level generator that combines aspects of the Loop-Tree Duality technique with the OpenLoops approach. The first part of the talk deals with methodological aspects, with focus on double and triple-cut singularities and local IR cancellations. This is complemented by first NLO QCD results for multi-jet plus multi-boson production at electron-positron...
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Christian Biello (ETHZ)10/9/26, 9:25 AM
We present an integrand-level representation of generic two-loop amplitudes in massless Quantum Electrodynamics (QED) that is free of IR singularities. We define building blocks that render the integrand manifestly polarised and Ward-identity preserving, in such a way that spurious (transient) singularities are removed. The full integrands are then assembled by gluing these building blocks...
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Germán Rodrigo (IFIC UV-CSIC)10/9/26, 9:50 AM1
One of the main strengths of the Loop-Tree Duality representation of scattering amplitudes is that it provides a particularly transparent description of the origin of infrared singularities. This talk will review recent progress in elucidating how infrared singularities emerge and cancel at the level of vacuum amplitudes, how finite integrals can easily be constructed, and will also present a...
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Valentin Hirschi10/9/26, 10:15 AM1